Efficient automatic repeat request method using variable length sequence numbers
CA 2307485 A1 · Owner: Khan, Farooq Ullah · Inventors: Nanda, Sanjiv; Knisely, Douglas N.; Kumar, Sarath
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A variable length sequence number is used to identify data units in a communication channel. The sequence number associated with the most recent data that, has been received successfully and the sequence number expected with the next new data, message to be received are examined to determine the minimum size sequence number, necessary to unambiguously identify to the transmitter incorrectly received data that must, be retransmitted in a later message. The receiver provides the transmitter with the, sequence number associated with the last successfully received byte of data and the, sequence number associated with the next expected byte of data. The receiver communicates this …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed May 4, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 4, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 4, 2022.
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Timeline
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Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.